Technical description and composition of the SUPRA STV-LC2615F TV, panel type and modules used. The composition of the modules.SUPRA
Model: STV-LC2615F
Chassis / Version: T.MS6M48.1C ver V2K03
Panel: TC260F103 HD
Inverter (backlight): integrated into PSU
PWM Inverter: UBA2071AT
MOSFET Inverter: HFS4N60
Trans Inverter: 182-0423001R
Power Supply (PSU): HKLIPS2604-3A REV: F GP
PWM Power: FAN7530 (PFC), OB2269CP (PWM Flayback)
MOSFET Power: 11N60C3 (PFC), 04N70BI
MainBoard: T.MS6M48.1C 10343
IC MainBoard: CPU: MST6M48RHS, DDRAM: NT5TU32M16CG, Spi Flash: MX25L3205, AUDIO: R2A15122FP
Tuner: ET-6T1E-LF-108W-A
Technical Specifications STV-LC2615F
SUPRA STV-LC2615F
General recommendations for TV LCD repair
Repair of a SUPRA TV with T.MS6M48.1C ver V2K03 chassis should begin with a fault diagnosis, which involves a careful examination of the external and internal elements of the device. Specific external damage to some elements can sometimes indicate further actions to determine the malfunction of the TV and localization of the defect before the necessary measurements are taken. In most cases, the repairman can guess about the causes of the defect and the possible consequences by the characteristic signs of typical defects in TVs, for example, the formed ring cracks in the soldering of the element terminals, swollen capacitors of the rectifier filter, charred resistors and other circuit elements.
In the case when the STV-LC2615F does not turn on, does not respond to the remote control and buttons on the front panel, does not blink lights and does not show any signs of operability, the HKLIPS2604-3A power supply module is probably faulty in this case. If it is serviceable with such manifestations, it is necessary to check the stabilizer (converter) of the processor power supply on the motherboard. Diagnostics and repair of the general power supply unit should always begin by checking the mains fuse and the condition of the electrolytic capacitors of the secondary rectifier filters. Defective and swollen capacitors should be replaced with new ones. If the fuse breaks, it is advisable to check for a breakdown, first of all, all the power semiconductor elements of the converter and the diode bridge of the rectifier network, as well as the large electrolytic capacitor of the filter of the rectifier network.
It should be borne in mind that in the practice of repair, it is extremely rare for key transistors in switching power supplies (SMPS) to fail without reasons that should be looked for by checking other components, for example, a key breakdown can provoke faulty elements of damper circuits, or dried electrolytic capacitors or broken primary resistors power supply circuits involved in the stabilization process. In this case, all semiconductor elements of the binding of the PWM controller microcircuit are subject to verification, which it is desirable to verify by replacement.
If SUPRA STV-LC2615F has no picture, but there is sound, there is a possibility of a malfunction of the backlight lamps or their power converter. You should also make sure that the electrolytic capacitors of the secondary rectifiers of the common power supply are in good working order. When disabling the inverter protection (to enable diagnostics), special care must be taken in view of the risk of failure of the power elements. After the completion of all repair work, it is imperative to restore the protection circuits for the full and safe further operation of the TV by the user.
The motherboard T.MS6M48.1C 10343 is subject to verification if there is no reaction to the remote control and function buttons, the standby indicator blinks or lights up continuously. In such cases, if the converters or power stabilizers of the microcircuit are working, a software update may be necessary. In cases of complex MB (SSB) repairs and with the necessary skills and equipment, it may sometimes be necessary to replace its Spi Flash: MX25L3205 chips and other possible faulty components. Malfunctions associated with the use of BGA soldering technologies are usually easily diagnosed by the warm-up method.
Owners of the STV-LC2615F TV are advised to contact only qualified specialists with experience for repair! Attempts to repair yourself without the appropriate knowledge and skills can lead to serious negative consequences!
FIRMWARE FOR SPI FLASH -----------> SUPRA STV-LC2615F, Main: T.MS6M48.1C 10343, Panel: TC260F103 HD
The appearance of the MainBoard T.MS6M48.1C is shown in the figure below:
T.MS6M48.1C
The motherboard T.MS6M48.1C is manufactured using the MST6M48RHS microprocessor, which includes a graphic scaler controller. For organization of the processor, an external RAM NT5TU32M16CG DDR2 SDRAM in BGA version and SPI FLASH 25Q32 (25L32) (4Mb) are used as read-only memory (ROM). A DC / DC converter with an output voltage of 1.2V is used to supply power to the processor core. Other processor nodes are powered by linear voltage stabilizers 2.5V, 3.3V. DDR RAM is powered by 1.8V, SPI FLASH ROM needs 3.3V.
It is advisable to start the MainBoard repair by checking the supply voltage in Stand-by mode 3.3V, it can be measured on pin 8 of the SPI chip. In operating mode, check the operability of all linear stabilizers and DC / DC converters. If there is a backlight and there is no image, you need to check the power of the 5V or 12V panel (depending on the type of LCD panel), which should be present directly on the LVDS connector.If the indicator signals Stand-by mode and does not respond to the remote control and control buttons, it is recommended to update the SPI Flash software. Taking into account the glitchiness of Winbond's SPI microcircuits, it is advisable to replace them with new ones in case of software failures.
T.MS6M48.1C can be used in TVs:FUSION FLTV-32W4 (Panel DTW0315CK01-B), SUPRA STV-LC2615W (Panel TC260B301), SUPRA STV-LC2615F (Panel TC260F103 HD), SUPRA STV-LC3215FD (Panel V315H1-L02 Rev C1).
Additionally by PSU
According to the conditions of compliance with modern world standards for household switching power supplies, the HKLIPS2604-3A module provides for the use of a Power Factor Correction unit. The PFC is a step-up flyback converter based on the FAN7530 PWM controller. The reactive resistance of the electrolytic capacitor of the mains filter at a frequency of 50-60 Hz is usually no more than 20-30 ohms and its charge directly from the network through open diodes could reach tens of amperes per pulse if no filtering is applied.
As a result of the PFC conversion, an increased voltage on the capacitor (about 380V) cannot directly open the rectifier diodes, on the anode of which the voltage will always be slightly less (about 300V) and then its charging current will always be limited by the elements of the PWM controller. As a result, the envelope of high-frequency pulses of the consumed current will repeat the shape and phase of the input sinusoidal voltage. The presence of an increased voltage (+ 380V) on the network capacitor indicates the health of the PFC unit.
Main features of SUPRA STV-LC2615F device:
Installed matrix (LCD panel) TC260F103 HD.
A converter combined with a power supply is used to power the backlight lamps, it is controlled by the UBA2071AT PWM controller. The transformer 182-0423001R is installed in the inverter converter. HFS4N60 keys are used as power elements of the inverter.
The necessary supply voltages for all nodes of the SUPRA STV-LC2615F TV are generated by the HKLIPS2604-3A power supply module or its analogs using FAN7530 (PFC), OB2269CP (PWM Flayback) microcircuits and power switches of the 11N60C3 (PFC), 04N70BI type.
MainBoard - the main board (motherboard) is a T.MS6M48.1C module, using CPU chips: MST6M48RHS, DDRAM: NT5TU32M16CG, Spi Flash: MX25L3205, AUDIO: R2A15122FP and others.
Tuner ET-6T1E-LF-108W-A provides reception of television programs and tuning to channels.
LCD TV SUPRA STV-LC2615F with LCD display TC260F103, diagonal size 26 "(66 cm) 16:10 format. Brightness of the screen glow 300 cd / m² is provided by fluorescent lamps CCFL (EEFL). Dynamic contrast ratio 2000: 1 is achieved by special The TV features include viewing programs and movies in high quality HD at a resolution of 1920x1200 pixels in graphic resolution according to the standard 1080p (Full HD). The input high-frequency or video signal is decoded in analog systems PAL, SECAM, NTSC. Graphic processing and generation of a digital signal happens in the standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p.
Speaker power 16 W (2x8 W) is provided by two speakers. The NICAM STEREO audio processing system is used.
External interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, audio x3, S-Video, component, SCART x2, RGB, VGA, HDMI x2. An output for connecting headphones is provided. To connect a computer or laptop to this TV model, use the VGA (D-Sub 15) connector on the TV case, this interface supports resolutions: 640x480, 800x600, 1024x768.
The power consumed by the TV in operating mode from the network is 160 watts.
Overall dimensions: 615x495x215 mm.
